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All Journal CAUCHY: Jurnal Matematika Murni dan Aplikasi Gamatika HISTOGRAM: Jurnal Pendidikan Matematika JTAM (Jurnal Teori dan Aplikasi Matematika) Meteor STIP Marunda Jurnal Penelitian Transportasi Laut Dinasti International Journal of Digital Business Management International Journal of Advanced Multidisciplinary Jurnal Karya Abdi Masyarakat
Imam Fahcruddin
Jurusan Matematika, UIN Maulana Malik Ibrahim Malang
Religion Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Public Health Social Sciences Transportation Other

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Maintenance of Steam Bottle Water to Keep Operational Auxiliary Steam Bottles on The Mv. Ile De Re Salsabila Alattas, Syarifah; Simanjuntak, P. Dwikora; Suhartini, Capt.; Fahcruddin, Imam
International Journal of Advanced Multidisciplinary Vol. 2 No. 2 (2023): International Journal of Advanced Multidisciplinary (July-September 2023)
Publisher : Green Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/ijam.v2i2.307

Abstract

Various types of marine vessels require fuel to drive the main engine and auxiliary engines. The fuel requires hot steam as a heater so that the fuel reaches the appropriate temperature, not only fuel but hot steam is also needed for the accommodation space on the ship. The steam boiler is a closed vessel that can produce hot steam with a pressure greater than one atmosphere, to be able to produce hot steam, a heated medium is needed, namely fresh water. The water used in the steam generation process greatly affects the condition of the boiler. Therefore, the quality of water in the boiler must always be considered and maintained so that it is always in good condition, so that the boiler will always be in prime condition. In reality, steam boilers often experience disturbances, such as on the MV. ILE DE RE there is a decrease in the quality of boiler water and the occurrence of scale in the boiler. In this case, the research used an observation research method on boiler water by testing boiler water and it was found that the quality of boiler water was not up to standard with low pH levels up to 6.8, high alkalinity and high chloride up to 200 ppm. there is also a scale formation on the boiler water pipe which can be seen from the dirty condition of the boiler water when taken.
Sosialisasi Dan Partisipasi Penanggulangan Pencemaran Laut Bagi Masyarakat Pesisir Pantai Di Desa Tanjung Pakis Kabupaten Karawang Barat Fahcruddin, Imam; Buswan, Buswan; Malau, April Gumawan; Ariwibowo, Titis
Jurnal Karya Abdi Masyarakat Vol. 4 No. 1 (2020): Jurnal Karya Abdi Masyarakat
Publisher : LPPM Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (513.576 KB) | DOI: 10.22437/jkam.v4i1.10122

Abstract

Permasalahan pengelolaan sampah di lingkungan pesisir pantai Tanjung Pakis merupakan hal klasik yang sulit untuk ditanggulangi. Permasalahan sampah tidak hanya menyebabkan kerusakan lingkungan di wilayah pesisir pantai, tetapi juga berdampak pada penurunan produktivitas ikan dan selanjutnya akan berdampak terhadap perkonomian serta kesehatan masyarakat. Kesadaran akan menjaga kebersihan pantai harus ditanamkan kepada masyarakat di sekitar pesisir pantai. Pengabdian kepada Masyarakat adalah proses pengabdian dosen melalui berbagai kegiatan langsung di masyarakat. Dari hasil kegiatan diperoleh kesimpulan bahwa dengan adanya sosialisasi serta partisipasi masyarakat pesisir dalam membersihkan pantai dapat meningkatkan kesadaran masyarakat akan penanggulangan pencemaran laut di sekitar perairan Tanjung Pakis.
The Influence of Service Quality and Determination Price of Implications of Satisfaction on Customer Loyalty of PT. Tama Anugerah Mandiri Marcelino, Reza; Ahadianto, Muhammad Sayakfika; Malau, April Gunawan; Fahcruddin, Imam
Dinasti International Journal of Digital Business Management Vol. 6 No. 5 (2025): Dinasti International Journal of Digital Business Management (August - Septembe
Publisher : Dinasti Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/dijdbm.v6i5.5519

Abstract

This study aims to analyze the influence of service quality and pricing on customer satisfaction and its implications on customer loyalty at PT. Tama Anugerah Mandiri, a company operating in the ship agency sector. The main problem identified is the low level of customer satisfaction due to variations in service quality and perceptions regarding ship agency service pricing. This research employs a quantitative approach with an explanatory research design. The population consists of 90 customers, and the entire population was used as the sample through a saturated sampling technique. Data were collected using questionnaires measuring customers' perceptions of service quality, pricing, satisfaction, and loyalty. Data analysis was conducted using Structural Equation Modeling (SEM) to examine the relationships among variables simultaneously. The results indicate that service quality has a positive and significant effect on customer satisfaction, and competitive pricing also enhances satisfaction. Customer satisfaction acts as an intervening variable that strengthens the influence of service quality and pricing on customer loyalty. These findings emphasize the importance of appropriate service and pricing strategies to maintain customer satisfaction and loyalty in the ship agency industry
Mathematical Modeling of Foot and Mouth Disease Spread on Livestock using Saturated Incidence Rate Fahcruddin, Imam; Harianto, Joko; Fitrial, Denny
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 7, No 1 (2023): January
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v7i1.10264

Abstract

Foot and Mouth Disease (FMD) is an acute infectious disease that attacks livestock, thus threatening the availability of food and the husbandry industry. This paper discusses the formulation of a mathematical model for the spread of FMD in livestock with a saturated incidence rate. The research method used is quantitative mathematical modeling with simulation, with stages including problem identification, determining assumptions, model formulation, analysis and model simulation. The discussion results obtained two equilibrium points, namely the non-endemic equilibrium point and the endemic equilibrium point, and then analyzed for stability. Numerical simulation is presented using Runge-Kutta approximation with MATLAB. Furthermore, after a sensitivity analysis, the parameters that greatly influenced the spread of FMD were direct or indirect contact (which led to the entry of the FMD virus) and the supporting capacity of livestock. Then the most influential parameter in reducing the spread of FMD is the application of culling on exposed animals and infected animals. The FMD modeling is a form of mathematical application to simulate the spread of disease on livestock.
Co-Authors Ahadianto, Muhammad Sayakfika Antoni Arif Priadi April Gunawan Malau Buswan, Buswan fitrial, denny Gupron, Ahmad Kasan I Made Sulandra Joko Harianto Malau, April Gumawan Marcelino, Reza Nafi Almuzani P. Dwikora Simanjuntak Siregar, Pande I. Siti Faridah Suhartini, Capt. Syarifah Salsabila Alattas Wibowo, Titis Ari